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54FT 7-Size Black 4:1 Heat Shrink Tubing Kit combines seven tubing diameters for insulating, sealing, and protecting wire joints, terminals, cable bundles, and harness branches. The 54FT option includes longer rolls in the most-used midrange sizes, while the 21FT option provides 3FT of every size.
| Before Diameter | Nominal Recovered Diameter | 54FT Kit Length | 21FT Kit Length | Roll Quantity | Wall Thickness | Material / Sealing | Recommended Application |
|---|---|---|---|---|---|---|---|
| 3/32 in (2.4mm) | Approx. 3/128 in (0.6mm) | 6FT | 3FT | 1 roll | Not published | Dual-wall plastic, self-adhesive lining | Fine wires and compact splices |
| 1/8 in (3.2mm) | Approx. 1/32 in (0.8mm) | 6FT | 3FT | 1 roll | Not published | Dual-wall plastic, self-adhesive lining | Small wires and narrow terminals |
| 3/16 in (4.8mm) | Approx. 3/64 in (1.2mm) | 6FT | 3FT | 1 roll | Not published | Dual-wall plastic, self-adhesive lining | Light wire bundles and small joints |
| 1/4 in (6.3mm) | Approx. 1/16 in (1.6mm) | 9FT | 3FT | 1 roll | Not published | Dual-wall plastic, self-adhesive lining | Common wire joints and terminal barrels |
| 3/8 in (9.5mm) | Approx. 3/32 in (2.4mm) | 12FT | 3FT | 1 roll | Not published | Dual-wall plastic, self-adhesive lining | Medium cable joints and harnesses |
| 1/2 in (12.7mm) | Approx. 1/8 in (3.2mm) | 9FT | 3FT | 1 roll | Not published | Dual-wall plastic, self-adhesive lining | Larger cable joints and connector bodies |
| 3/4 in (19mm) | Approx. 3/16 in (4.8mm) | 6FT | 3FT | 1 roll | Not published | Dual-wall plastic, self-adhesive lining | Large connectors and cable assemblies |
The 54FT lengths total 54FT; the 21FT option provides 3FT of each size. Recovered diameters are nominal values calculated from the stated 4:1 ratio. Wall thickness and a numeric heating-temperature range are not published on the current listing.
This black 4:1 heat shrink tubing kit is designed for automotive and marine wiring, electrical repairs, terminal and splice protection, cable-bundle organization, strain relief, and DIY projects. Its dual-wall construction adds insulation and mechanical protection, while the internal adhesive helps block moisture and dirt. Do not use it as a substitute for a connector, fuse, or manufacturer-required insulation system.
Measure the widest part the tubing must pass over, including the connector or splice. Choose a before-shrink diameter larger than that point, then confirm the nominal recovered diameter is smaller than the cable or joint you want to seal. The 4:1 ratio is especially useful where the joint is much wider than the wire. Choose 54FT for repeat workshop or fleet use and 21FT for occasional repairs.
Avoid open flame and overheating. The listing does not provide a numeric temperature range, so use controlled, even heat and follow the heat-tool instructions. Browse more heat shrink tubing, compare the 5-color 4:1 heat shrink tubing kit, or use a 350W mini heat gun for controlled heating.
The 54FT kit includes 3/32, 1/8, 3/16, 1/4, 3/8, 1/2, and 3/4 inch tubing. The included lengths are 6, 6, 6, 9, 12, 9, and 6FT respectively.
The 21FT option includes the same seven diameters with 3FT of each size.
Choose a before-shrink diameter that clears the widest part of the joint and a nominal recovered diameter smaller than the section to be sealed.
Yes. The current listing identifies self-adhesive installation and dual-wall construction, which helps form a moisture-resistant seal when heated correctly.
The current listing does not publish a numeric temperature range. Apply controlled, even heat, keep the heat source moving, and stop after the sleeve has fully recovered and the adhesive has sealed the edges.
Crimping tool designed for heat shrink connectors, ratcheting mechanism, comfortable handles
The solder seal wire connector heat-shrink tube made of EVA materials clearly allows the user to see the quality of the soldering penetration, which is one of the qualities that verify a quality connector!
The 3:1 heat shrink connector with adhesive lined will exude hot melt adhesive after being evenly heated, quickly shrink, and adhesion to the insulation of the wire. Create a complete environmental seal. Waterproof,Wear-resistant.
Most items are usually shipped within 1-2 working days.
We do recommend allowing up to 3 weeks for your order in peak times, such as a special offer or promotion. Delivery times are beyond our control but rest assured give you the best service.
Your delivery confirmation email will contain your tracking number and order details.
Depending on the country of delivery, you may be required to pay extra tax or charges such as VAT and/or import duties.
We hope you love everything you purchase from Haisstronica but if you’re not 100% happy, we want to know about it. Please get in touch with all feedback about our products so we can continue improving our service for you.
You can return any item within 30 days of purchase. If you wish to return a product, you must notify Haisstronica within 7 days of receiving your item. Unfortunately due to logistics, we cannot accept return requests after this period.
All items being returned must be in new and resalable condition.
Refunds will be provided after the items have been received and inspected by Haisstronica. A 10% stocking fee will be deducted from the total amount.
Shipping charges are non-refundable.
Taxes and any other charges incurred by the customer are non-refundable.
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